Built around planned production time, the Time Usage report is a simple but powerful tool used to understand how your production time is divided between good production, slow production, and downtime. The report gives you insight if what you are doing is helping turn production stops into good production time. By increasing your good production you become more productive in how you use your resources.
Note: Please find the description of the general reports features here.
What does the Time Usage chart show?
The Time Usage chart simply visualizes your planned production time and by analyzing it you immediately understand whether your resources are utilized effectively or not. The division of time is shown using colors and follows the same principle as in Shift View (read more about this here).
The chart is especially useful when analyzing longer time frames to understand the trend in your time usage and also to identify whether your main losses are due to downtime or slow cycles.
What production data is displayed in the Time Usage data table?
The division of time that you see on the chart is also shown in the data table. The only difference is that instead of just percentages, data is also displayed in time.
Please note that the percentages are calculated based on total production time and not planned time (planned time is not the sum of other columns).
- Good production - the time when production is running as planned or faster. It is calculated according to the set cycle time.
- Speed loss - the time in between two sensor signals that exceeds the set cycle time and is less than stop start time.
- Example: set cycle time is 1 unit per minute and stop start time is 5 minutes. If the time between signals is 4 minutes, then 3 minutes is considered as speed loss.
- Planned stops - there are 2 types of planned stops - those that are included in OEE calculation and the ones that are not (choice is made in each stop’s settings):
- Planned stop, not included in OEE calculation - these stops reduce planned time and therefore do not reduce availability and OEE.
- Planned stop, included in OEE calculation - these stops are taken into account principally the same way as unplanned stops - they don’t reduce planned time and so affect OEE.
- Examples of planned stops are plant shutdowns, breaks/lunches, or standby periods where there are no production orders.
- Unplanned stops - these are considered waste. They reduce availability and OEE and they should be reduced to a minimum.
- For example equipment failures and material shortages.
- Uncommented stops - production stops that have not been commented. They affect the OEE the same way as unplanned stops.
- Planned time - the total time planned for production at a station (production line or workstation). Planned time is defined by shifts created on the station settings page minus planned stops (that are excluded from OEE calculation).
- Planned time = Shift time - Planned stops not included in OEE